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What’s the News:<\/strong> In high school physics classes, students are often taught that static electricity<\/a> develops when electrons detach from the surface of one object and jump to another, causing a difference in charge. Since opposite charges attract, the two objects are drawn to one another (like your hair to a balloon). But new research published in the journal Science<\/em><\/a> shows that static electricity is caused by more than just the exchange of individual electrons, and instead involves the transfer of bigger (yet still tiny) clumps of material.<\/p> How the Heck:<\/strong><\/p> Scientists conventionally believed that static electricity required friction between two different non-metals, which would tug at their electrons with different amounts of force. But last year, a group of researchers at Northwestern University found that two sheets of the same polymer, like Teflon, can generate static electricity, also called contact electrification<\/a> (pdf). After the discovery, some of the researchers, including chemist Bartosz Grzybowski, wanted to understand how it all worked. What’s the News: In high school physics classes, students are often taught that static electricity develops when electrons detach from the surface of one object and jump to another, causing a difference in charge. Since opposite charges attract, the two … Continue reading
Grzybowski ...<\/p><\/a>
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